When talking about the past in German like in some other languages as well you need to use an auxiliary verb to form the present perfect tense (das Perfekt). In this video you will not only learn about how many actually use "sein" and how many "haben" but you will also get the Top 20 German verbs...

In this video you will not only learn the reason when you need to use "mich" (Akkusativ) or "mir" (Dativ), but also some common used German short phrases you can use in your daily life in Germany.